1st off your English is better than my Spanish
Converting from RHD to LHD, everything is possible, starting with a rack, so pretty sure a Metro rack will be available, a lot more work probably re arranging the dash and pedals.
Rossa Bits supply most special parts for the car and is on this forum.
I converted my Coupe to LHD, but as I did not have much more than a body and chassis to start with almost everything had to be made, or adapted from anything I could find as no Mini's here for parts, more than 7 years and still working on it.
Good luck
John